                 :ford          {:movement-cost 5 :armor-bonus -1 :attack-bonus -1}
                 :shallow-water {:movement-cost 7 :armor-bonus -2 :attack-bonus -2}
                 :base          {:movement-cost 2 :armor-bonus  3 :attack-bonus  2}
-                :seaport       {:movement-cost 2 :armor-bonus  0 :attack-bonus  0}}
+                :seaport       {:movement-cost 2 :armor-bonus  0 :attack-bonus  0}
+                :airfield      {:movement-cost 2 :armor-bonus  0 :attack-bonus  0}}
               :attack-strengths
               {:personnel 5
                :armored   2
-               :naval     3}
+               :naval     3
+               :air       0}
               :zoc
               [:personnel :armored]}
      ;; Armored

      }
     {:q 2
      :r 4
      :terrain-type :plains}
     {:q 3
      :r 4
      :terrain-type :plains}

                  :swamp     {:movement-cost 9 :armor-bonus -2 :attack-bonus -2}
                  :ford      {:movement-cost 9 :armor-bonus -1 :attack-bonus -1}
                  :base      {:movement-cost 3 :armor-bonus  3 :attack-bonus -1}
                  :seaport   {:movement-cost 3 :armor-bonus  0 :attack-bonus  0}
                  :airfield  {:movement-cost 3 :armor-bonus  0 :attack-bonus  0}}
                 :attack-strengths
                 {:personnel 8
                  :armored   9
                  :naval     6
                  :air       3}
                 :zoc
                 [:personnel :armored :naval]}
     :mortar {:description "Mortar"
              :cost 200
              :movement 9
